add support for the vcpkg ecosystem

[rursprung]

C & C++ don't have an official dependency management system, however some have sprung up over the years. none of these is currently supported here.
it'd be great if support for vcpkg could be added.

[KateCatlin]

Thanks for the feedback @rursprung. This is on our radar! I'll keep this issue open in case others want to comment/emoji.